Toefl exam Essentials

Answer: 1. mix in atmosphere; 2. form fine particles; 3.
carried by wind; 4. return to ground in rain.
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Matching questions. You will match up or pair images,
words, or phrases.

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LISTENING
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Question: An instructor describes the formation and effects
of acid rain. Match each term with its definition. 
[Click on a sentence. Then click on the space where it
belongs. Use each sentence only once.]
precipitation fossil fuel pollutant
something that contaminates the environment
condensed vapor that falls to earth as a deposit like rain or snow
a fuel formed in the earth from plant or animal remains
Answer:
precipitation
fossil fuel
pollutant
condensed vapor 
a fuel formed in
something that
that falls to earth
the earth from
contaminates the
as a deposit like 
plant or animal
environment
rain or snow
remains
WHAT’S UP WITH IDIOMATIC EXPRESSIONS
You probably won’t see the greeting “What’s up?” in the reading
portion of the TOEFL exam, but you might hear it—or another
idiom—on the listening test. Idioms are words or phrases used
in a particular region. Idiomatic expressions often have unusual
grammatical structures or have a meaning that does not make sense
when you add up the meanings of each word. Here’s an example
of a test question that will ask you to identify the meaning of an
idiomatic expression:
Woman: The astronomy midterm is tomorrow!
Man: I know. I’m not ready. It’s going to be an all-nighter!

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